Last week's Lyrid meteor shower was a bit of a disappointment visually, but it put on quite a show for radio observers. In this story you can learn about the basics of radio Meteorsand listen to radar echoes from a bright shooting star.

Mars Climate Orbiter is set to enter orbit around The Red Planetthis week. It will become the first interplanetary weather satellite and a communications relay for the next lander mission to explore Mars.